1 files changed, 213 insertions, 4 deletions
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs
index a521f469d1d..e470dca128f 100644
--- a/components/script/dom/webglrenderingcontext.rs
+++ b/components/script/dom/webglrenderingcontext.rs
@@ -5,13 +5,23 @@
 use canvas::webgl_paint_task::WebGLPaintTask;
 use canvas::canvas_msg::{CanvasMsg, CanvasWebGLMsg, CanvasCommonMsg};
 use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding;
-use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextMethods;
+use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::{ WebGLRenderingContextMethods, WebGLRenderingContextConstants};
 use dom::bindings::global::{GlobalRef, GlobalField};
 use dom::bindings::js::{JS, JSRef, LayoutJS, Temporary};
 use dom::bindings::utils::{Reflector, reflect_dom_object};
 use dom::htmlcanvaselement::{HTMLCanvasElement};
+use dom::webglbuffer::{WebGLBuffer, WebGLBufferHelpers};
+use dom::webglshader::{WebGLShader, WebGLShaderHelpers};
+use dom::webglprogram::{WebGLProgram, WebGLProgramHelpers};
+use dom::webgluniformlocation::{WebGLUniformLocation, WebGLUniformLocationHelpers};
 use geom::size::Size2D;
-use std::sync::mpsc::{Sender};
+use js::jsapi::{JSContext, JSObject};
+use js::jsfriendapi::bindgen::{JS_GetFloat32ArrayData, JS_GetObjectAsArrayBufferView};
+use js::jsval::{JSVal, NullValue, Int32Value};
+use std::mem;
+use std::ptr;
+use std::sync::mpsc::{channel, Sender};
+use util::str::DOMString;
 
 #[dom_struct]
 pub struct WebGLRenderingContext {
@@ -59,13 +69,212 @@ impl Drop for WebGLRenderingContext {
 }
 
 impl<'a> WebGLRenderingContextMethods for JSRef<'a, WebGLRenderingContext> {
-    fn Clear(self, mask: u32) -> () {
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn AttachShader(self, program: Option<JSRef<WebGLProgram>>, shader: Option<JSRef<WebGLShader>>) {
+        let program_id = match program {
+            Some(program) => program.get_id(),
+            None => return,
+        };
+        let shader_id = match shader {
+            Some(shader) => shader.get_id(),
+            None => return,
+        };
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::AttachShader(program_id, shader_id))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
+    fn BindBuffer(self, buffer_type: u32, buffer: Option<JSRef<WebGLBuffer>>) {
+        let buffer_id = match buffer {
+            Some(buffer) => buffer.get_id(),
+            None => return,
+        };
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::BindBuffer(buffer_type, buffer_id))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
+    #[allow(unsafe_code)]
+    fn BufferData(self, cx: *mut JSContext, target: u32, data: Option<*mut JSObject>, usage: u32) {
+        let data = match data {
+            Some(data) => data,
+            None => return,
+        };
+        let data_vec;
+        unsafe {
+            let mut length = 0;
+            let mut ptr = ptr::null_mut();
+            let buffer_data = JS_GetObjectAsArrayBufferView(cx, data, &mut length, &mut ptr);
+            if buffer_data.is_null() {
+                panic!("Argument data to WebGLRenderingContext.bufferdata is not a Float32Array")
+            }
+            let data_f32 = JS_GetFloat32ArrayData(buffer_data, cx);
+            let data_vec_length = length / mem::size_of::<f32>() as u32;
+            data_vec = Vec::from_raw_buf(data_f32, data_vec_length as usize);
+        }
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::BufferData(target, data_vec, usage))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
+    fn Clear(self, mask: u32) {
         self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::Clear(mask))).unwrap()
     }
 
-    fn ClearColor(self, red: f32, green: f32, blue: f32, alpha: f32) -> (){
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
+    fn ClearColor(self, red: f32, green: f32, blue: f32, alpha: f32) {
         self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::ClearColor(red, green, blue, alpha))).unwrap()
     }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn CompileShader(self, shader: Option<JSRef<WebGLShader>>) {
+        let shader_id = match shader {
+            Some(shader) => shader.get_id(),
+            None => return,
+        };
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CompileShader(shader_id))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
+    fn CreateBuffer(self) -> Option<Temporary<WebGLBuffer>> {
+        let (sender, receiver) = channel::<u32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CreateBuffer(sender))).unwrap();
+        Some(WebGLBuffer::new(self.global.root().r(), receiver.recv().unwrap()))
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn CreateProgram(self) -> Option<Temporary<WebGLProgram>> {
+        let (sender, receiver) = channel::<u32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CreateProgram(sender))).unwrap();
+        Some(WebGLProgram::new(self.global.root().r(), receiver.recv().unwrap()))
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn CreateShader(self, shader_type: u32) -> Option<Temporary<WebGLShader>> {
+        let (sender, receiver) = channel::<u32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CreateShader(shader_type, sender))).unwrap();
+        Some(WebGLShader::new(self.global.root().r(), receiver.recv().unwrap()))
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
+    fn DrawArrays(self, mode: u32, first: i32, count: i32) {
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::DrawArrays(mode, first, count))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
+    fn EnableVertexAttribArray(self, attrib_id: u32) {
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::EnableVertexAttribArray(attrib_id))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
+    fn GetAttribLocation(self, program: Option<JSRef<WebGLProgram>>, name: DOMString) -> i32 {
+        let program_id = match program {
+            Some(program) => program.get_id(),
+            None => return -1,
+        };
+        let (sender, receiver) = channel::<i32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::GetAttribLocation(program_id, name, sender))).unwrap();
+        receiver.recv().unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn GetShaderInfoLog(self, shader: Option<JSRef<WebGLShader>>) -> Option<DOMString> {
+        let shader_id = match shader {
+            Some(shader) => shader.get_id(),
+            None => return None,
+        };
+        let (sender, receiver) = channel::<String>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::GetShaderInfoLog(shader_id, sender))).unwrap();
+        let info = receiver.recv().unwrap();
+        Some(info)
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn GetShaderParameter(self, _: *mut JSContext, shader: Option<JSRef<WebGLShader>>, param_id: u32) -> JSVal {
+        let shader_id = match shader {
+            Some(shader) => shader.get_id(),
+            None => return NullValue(),
+        };
+        let (sender, receiver) = channel::<i32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::GetShaderParameter(shader_id, param_id, sender))).unwrap();
+        Int32Value(receiver.recv().unwrap())
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
+    fn GetUniformLocation(self, program: Option<JSRef<WebGLProgram>>, name: DOMString) -> Option<Temporary<WebGLUniformLocation>> {
+        let program_id = match program {
+            Some(program) => program.get_id(),
+            None => return None,
+        };
+        let (sender, receiver) = channel::<u32>();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::GetUniformLocation(program_id, name, sender))).unwrap();
+        Some(WebGLUniformLocation::new(self.global.root().r(), receiver.recv().unwrap()))
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn LinkProgram(self, program: Option<JSRef<WebGLProgram>>) {
+        let program_id = match program {
+            Some(program) => program.get_id(),
+            None => return,
+        };
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::LinkProgram(program_id))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn ShaderSource(self, shader: Option<JSRef<WebGLShader>>, source: DOMString) {
+        let shader_id = match shader {
+            Some(shader) => shader.get_id(),
+            None => return,
+        };
+        let source_lines: Vec<String> = source.trim()
+                                              .split(|c: char| c == '\n')
+                                              .map(|line: &str| String::from_str(line) + "\n")
+                                              .collect();
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::ShaderSource(shader_id, source_lines))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
+    #[allow(unsafe_code)]
+    fn Uniform4fv(self, cx: *mut JSContext, uniform: Option<JSRef<WebGLUniformLocation>>, data: Option<*mut JSObject>) {
+        let uniform_id = match uniform {
+            Some(uniform) => uniform.get_id(),
+            None => return,
+        };
+        let data = match data {
+            Some(data) => data,
+            None => return,
+        };
+        let data_vec: Vec<f32>;
+        unsafe {
+            let data_f32 = JS_GetFloat32ArrayData(data, cx);
+            data_vec = Vec::from_raw_buf(data_f32, 4);
+        }
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::Uniform4fv(uniform_id, data_vec))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
+    fn UseProgram(self, program: Option<JSRef<WebGLProgram>>) {
+        let program_id = match program {
+            Some(program) => program.get_id(),
+            None => return,
+        };
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::UseProgram(program_id as u32))).unwrap()
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
+    fn VertexAttribPointer(self, attrib_id: u32, size: i32, data_type: u32,
+                           normalized: bool, stride: i32, offset: i64) {
+        match data_type {
+            WebGLRenderingContextConstants::FLOAT => {
+                self.renderer.send(
+                    CanvasMsg::WebGL(CanvasWebGLMsg::VertexAttribPointer2f(attrib_id, size, normalized, stride, offset))).unwrap()
+            }
+            _ => panic!("VertexAttribPointer: Data Type not supported")
+        }
+
+    }
+
+    // https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.4
+    fn Viewport(self, x: i32, y: i32, width: i32, height: i32) {
+        self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::Viewport(x, y, width, height))).unwrap()
+    }
 }
 
 pub trait LayoutCanvasWebGLRenderingContextHelpers {